NPL(NodePort Local) changing service type from clusterIP to Nodeport doesn't removes the NPL annotations in POD

[tamilhce]

Describe the bug
NPL(NodePort Local)while changing the service type from clusterIP to Nodeport. The respective NPL annotations in POD are not removed
To Reproduce

step1: created svc object(default : Cluster IP)

 apiVersion: v1
kind: Service
metadata:
  annotations:
    nodeportlocal.antrea.io/enabled: "true"
  labels:
    app: nginx
  name: svc-nginx
  spec:
    ports:
    - name: web
      port: 80
      protocol: TCP
      targetPort: 8080
    selector:
      app: nginx

step2: As expected observed the NPL annotations in the POD

\":50000}]"}root@tvk-k8s119-ant-master-1:~# kubectl get pods -o=jsonpath="{range .items[*]}{'\n'}{.metadata.name}{':\t'}{.metaions}{end}"ti

nginx-deployment-b68c6d696-frrfj:	{"nodeportlocal.antrea.io":"[{\"podPort\":8080,\"nodeIP\":\"192.168.11.14\",\"nodePort\":50002}]"}
nginx-deployment-b68c6d696-qb2j4:	{"nodeportlocal.antrea.io":"[{\"podPort\":8080,\"nodeIP\":\"192.168.11.14\",\"nodePort\":50001}]"}
nginx-deployment-b68c6d696-qtzm7:	{"nodeportlocal.antrea.io":"[{\"podPort\":8080,\"nodeIP\":\"192.168.11.14\",\"nodePort\":50000}]"}
nginx-deployment-b68c6d696-xtg5t:	{"nodeportlocal.antrea.io":"[{\"podPort\":8080,\"nodeIP\":\"192.168.11.15\",\"nodePort\":50000}]"}root@tvk-k8s119-ant-master-1:~#

step3 : Change the svc from type clusterIP to NodePort

NAME         TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)        AGE 
svc-nginx    NodePort    10.100.85.236   <none>        80:30853/TCP   49m

step4: observed that Pod Annotations are not removed

\":50000}]"}root@tvk-k8s119-ant-master-1:~# kubectl get pods -o=jsonpath="{range .items[*]}{'\n'}{.metadata.name}{':\t'}{.metaions}{end}"ti

nginx-deployment-b68c6d696-frrfj:	{"nodeportlocal.antrea.io":"[{\"podPort\":8080,\"nodeIP\":\"192.168.11.14\",\"nodePort\":50002}]"}
nginx-deployment-b68c6d696-qb2j4:	{"nodeportlocal.antrea.io":"[{\"podPort\":8080,\"nodeIP\":\"192.168.11.14\",\"nodePort\":50001}]"}
nginx-deployment-b68c6d696-qtzm7:	{"nodeportlocal.antrea.io":"[{\"podPort\":8080,\"nodeIP\":\"192.168.11.14\",\"nodePort\":50000}]"}
nginx-deployment-b68c6d696-xtg5t:	{"nodeportlocal.antrea.io":"[{\"podPort\":8080,\"nodeIP\":\"192.168.11.15\",\"nodePort\":50000}]"}root@tvk-k8s119-ant-master-1:~#

Expected
As per the expectation, The Pod annotations needs to be removed if the svc object is of type NodePort

Versions:
Please provide the following information:

• Antrea version (v0.13.0).
• Kubernetes version -1.19